I'm unable to properly display my collection. I have tryed your HierarchicalDataTemplate example without success. Here are my code snippets.
Collection Class
public Dictionary<int, CategoryNode> Hierarchy = new Dictionary<int,CategoryNode>();
public void Add(Asset asset)
{
if (!Hierarchy.ContainsKey(asset.AssetCategoryId))
{
Hierarchy[asset.AssetCategoryId] = new CategoryNode(asset.AssetCategoryId, asset.Type.Category.AssetCategoryName);
Add(asset);
}
else
{
CategoryNode ac = Hierarchy[asset.AssetCategoryId];
if (!ac.Items.ContainsKey(asset.AssetTypeId))
{
ac.Items[asset.AssetTypeId] = new TypeNode(asset.AssetTypeId, asset.Type.AssetTypeName);
Add(asset);
}
else
{
TypeNode at = ac.Items[asset.AssetTypeId];
if (!at.Items.ContainsKey(asset.AssetId))
{
at.Items[asset.AssetId] = new AssetNode(asset.AssetId, asset.AssetName);
Add(asset);
}
else
{
at.Items[asset.AssetId].Value = asset.AssetName;
}
//Update Master List
List[asset.AssetId] = asset;
}
}
}
public List<int> GetAssetList()
{
List<int> assetList = new List<int>();
foreach (var item in List.Values)
{
assetList.Add(item.AssetId);
}
return assetList;
}
public List<int> GetAssetListByAssetCategory(int categoryID)
{
List<int> results = new List<int>();
if (Hierarchy.ContainsKey(categoryID))
{
CategoryNode ac = Hierarchy[categoryID];
foreach (TypeNode at in ac.Items.Values)
{
foreach (AssetNode node in at.Items.Values)
{
results.Add(node.Key);
}
}
}
return results;
}
public List<int> GetAssetListByAssetType(int categoryID, int typeID)
{
List<int> results = new List<int>();
if (Hierarchy.ContainsKey(categoryID))
{
CategoryNode ac = Hierarchy[categoryID];
if (ac.Items.ContainsKey(typeID))
{
TypeNode at = ac.Items[typeID];
foreach (AssetNode node in at.Items.Values)
{
results.Add(node.Key);
}
}
}
return results;
}
public bool Remove(int assetID)
{
bool result = false;
if (List.ContainsKey(assetID))
{
Asset asset = List[assetID];
if (Hierarchy.ContainsKey(asset.AssetCategoryId))
{
CategoryNode ac = Hierarchy[asset.AssetCategoryId];
if (ac.Items.ContainsKey(asset.AssetTypeId))
{
TypeNode at = ac.Items[asset.AssetTypeId];
if (at.Items.ContainsKey(asset.AssetId))
{
//Remove from hierarchy
at.Items.Remove(asset.AssetId);
//Remove from master list
List.Remove(asset.AssetId);
//success
result = true;
}
else
{
return false;
//throw new Exception("Asset " + asset.AssetId.ToString() + "exists in main list but the asset is missing in the hierarchy");
}
}
else
{
return false;
//throw new Exception("Asset " + asset.AssetId.ToString() + "exists in main list but the asset type is missing in the hierarchy");
}
}
else
{
return false;
//throw new Exception("Asset " + asset.AssetId.ToString() + "exists in main list but the asset category is missing in the hierarchy");
}
}
else
{
//Asset doesn't exist in master list
return false;
}
return result;
}
}
public class CategoryNode
{
public int Key { get; set; }
public string Value { get; set; }
public Dictionary<int, TypeNode> Items { get; set; }
public CategoryNode(int key, string value)
{
Key = key;
Value = value;
Items = new Dictionary<int, TypeNode>();
}
}
public class TypeNode
{
public int Key { get; set; }
public string Value { get; set; }
public Dictionary<int, AssetNode> Items { get; set; }
public TypeNode(int key, string value)
{
Key = key;
Value = value;
Items = new Dictionary<int, AssetNode>();
}
}
public class AssetNode
{
public int Key { get; set; }
public string Value { get; set; }
public AssetNode(int key, string value)
{
Key = key;
Value = value;
}
}
XAML Page
usercontrol resources..
<DataTemplate x:Key="NodeAssets">
<TextBlock Text="{Binding Path=Value.Value}" />
</DataTemplate>
<telerik:HierarchicalDataTemplate x:Key="NodeAssetTypes" ItemTemplate="{StaticResource NodeAssets}" ItemsSource="{Binding AssetNode, Path=Value}">
<TextBlock Text="{Binding Path=Value.Value}" />
</telerik:HierarchicalDataTemplate>
<telerik:HierarchicalDataTemplate x:Key="NodeAssetCategories" ItemTemplate="{StaticResource NodeAssetTypes}" ItemsSource="{Binding TypeNode, Path=Value}">
<TextBlock Text="{Binding Path=Value.Value}" />
</telerik:HierarchicalDataTemplate>
TreeView..
<telerikNavigation:RadTreeView x:Name="tvAssets" SelectionMode="Single" IsExpandOnSingleClickEnabled="True" IsDragDropEnabled="False" IsRootLinesEnabled="True" IsLineEnabled="True" Foreground="White"
Background="#646464" Selected="tvAssets_Selected" ItemTemplate="{StaticResource NodeAssetCategories}">
</telerikNavigation:RadTreeView>
Code Behind
tvAssets.ItemsSource = MapAssets.Hierarchy;